![CDATA[The air quality sensor and room climate sensor GS 40.40 mod from Müller is designed for wall mounting and offers a compact design. It measures CO2, temperature and humidity and supports Modbus communication in ASCII and RTU formats. The device has two control outputs (0-10 V) and two FET outputs, which enable versatile control of air conditioning systems and other devices. There is also an input for an external temperature sensor, which increases flexibility in room climate control. With these functions, the GS 40.40 mod is ideal for modern automation solutions in residential and commercial buildings.]]>